Function winapi::um::fileapi::UnlockFile

pub unsafe extern "system" fn UnlockFile(
    hFile: HANDLE, 
    dwFileOffsetLow: DWORD, 
    dwFileOffsetHigh: DWORD, 
    nNumberOfBytesToUnlockLow: DWORD, 
    nNumberOfBytesToUnlockHigh: DWORD
) -> BOOL